Nicla_System: add enterShipMode()

Author: giulcioffi

libraries/Nicla_System/src/Nicla_System.cpp

@@ -85,6 +85,17 @@ bool nicla::disableLDO()
   return true;
 }
 
+bool nicla::enterShipMode()
+{
+  //    STATUS reg:
+  //    | B7 | B6 |      B5     | B4 | B3 | B2 | B1 | B0 |
+  //    | RO | RO | EN_SHIPMODE | RO | RO | RO | RO | RO |
+
+  uint8_t status_reg = _pmic.getStatus();
+  status_reg |= 0x20;
+  _pmic.writeByte(BQ25120A_ADDRESS, BQ25120A_STATUS, status_reg);
+}
+
 uint8_t nicla::readLDOreg()
 {
   uint8_t ldo_reg = _pmic.readByte(BQ25120A_ADDRESS, BQ25120A_LDO_CTRL);

libraries/Nicla_System/src/Nicla_System.h

@@ -15,6 +15,7 @@ class nicla {
   static bool enable3V3LDO();
   static bool enable1V8LDO();
   static bool disableLDO();
+  static bool enterShipMode();
 
   static RGBled leds;
   static BQ25120A _pmic;